Answer:
72°
Step-by-step explanation:
Given that the radius(r) of the circle is 10 units and the length of arc ABC is 16π
The length of arc ABC = 
Where θ is the central angle in degrees.
Since the length of arc ABC is 16π,

The angle in a circle = 360°, therefore:
Central angle for arc AB (θ) = 360 - Central angle for arc ABC = 360 - 288 = 72°
Therefore the arc measure of arc AB is 72°
Answer:
15
Step-by-step explanation:
Pls find attached picture
Answer:
B. 5
Step-by-step explanation:
- |3 - 5 + 7|=
- |- 2 + 7 | =
- | 5 | =
- 5
<u>Answer is</u>: B. 5
Answer:
10
Step-by-step explanation:
1 tenth: 1/10
1 hundredth: 1/100
1/10 = X × 1/100
X = 100/10
X = 10
Answer:
- Part A Option B
- Part B 5.71 l and 4.29 l
Step-by-step explanation:
<h3>Part A</h3>
Let x be the volume of 5% solution
<u>Then the volume of 40% solution is </u>
<u>Amount of acid is 10*0.20 for resultant solution, x*0.05 for 5% solution and (10- x)*0.40 is for 40% solution:</u>
- 10*0.20 = x*0.05 + (10 - x)*0.40
Correct equation is B.
<h3>Part B</h3>
<u>Solving</u>
- 2 = 0.05x + 4 - 0.4x
- 0.35x = 2
- x = 2/0.35
- x = 5.71 l of 5% solution
and
- 10 - x = 10 - 5.71 = 4.29 l of 40% solution